never liked them as they rust fast, and was thinkng i want to get BBK or JBA(Bassani is nice, but too darn expensive) but I found out at the Carlisle today that i can now get them with ceramic coating. so now i'm thinking. How are they? Has anyone dyno them?
I've had the Mac long tubes on my car for about 3 years now. No problems with them other than the usual rust development, but I'm going to take care of that soon enough. As for power gains, I noticed a SOTP improvement, especially on top end. I think the Mac's tend to dyno a bit higher than other brands by a few hp. Least that is what I hear. If you can get them in a ceramic coating, then thats probalby about your best option in terms of price as all other companies are usually more expensive than Mac.